Missouri teachers have filed a lawsuit against the state’s new law that prevents teachers and students from maintaining a “non work-related website that allows exclusive access with a current or former student.” The law, which Gizmodo reports goes into effect next week, is clearly intended to prevent inappropriate sexual relations between teachers and students, but prevents all interactions. The teachers suing say the law infringes on their First Amendment rights.

Japanese iOS 5 users will find one very important new feature in the OS: earthquake notifications have been baked in, available at the flick of a switch in the iOS 5 Notification Center. 9to5Mac reports that the feature may drain battery life because it is always connected to the warning system, but that Japan’s system is the world’s most advanced. Japan’s earthquake warning system can give warnings from a few seconds to up to two minutes in advance of a quake. [image via @gregharbin]

Skype has acquired mobile messaging service GroupMe. The companies have declined to reveal the terms of the acquisition, but AllThingsD reports that Skype is rumored to have paid $85 million for the company. Meanwhile, Skype is in the process of being acquired by Microsoft, and Skype also acquired video service Qik earlier this year. The GroupMe blog reports that the team will stay in New York and work on their standalone app for now.

Travel search startup Hopper has raised $8 million in new funding. The investors in this round include Atlas Venture and Brightspark Ventures. TechCrunch reports that Hopper was founded by two former Expedia employees, Frederic Lalonde and Joost Ouwerkerk, and Sebastien Rainville.

What will happen to all the webOS developers now that HP has shown them the door? Microsoft’s Brandon Watson offered them a deal to switch to Windows Phones and they jumped at the chance. He initially tweeted, “To Any Published WebOS Devs: We’ll give you what you need to be successful on #WindowsPhone, incl.free phones, dev tools, and training, etc.” The response? As The Next Web reports, more than 500 emails in less than 24 hours.

After agreeing to acquire Autonomy and indicating that they will be shutting down the WebOS brand and spinning off their hardware business earlier this month, Hewlett-Packard Company (NYSE:HPQ) has been on a downward spiral. This past Friday, the company stock price dropped to the point where HP’s market cap as a whole lost $16 billion. Analysts blame the drop entirely on poor upper management decisions, specifically around Leo Apotheker’s visions. This is HP’s worst single-day stock price fall since the Black Monday stock market crash in October 1987.

There is an overwhelming amount of evidence that Apple Inc. (NASDAQ:AAPL) is currently testing out 4G LTE enabled iPhones. Earlier this month we reported that AT&T had installed 4G LTE equipment in Apple retail stores. Now there is a snippet of code that has been revealed in developer builds of iOS 5 that indicates Apple is testing out an LTE-enabled iPhone. Check out the code below:

British Airways is testing a fleet of iPads for its in-flight crews, Mashable reports, replacing stacks of flight information paper and manuals in some of their flights. The iPads have schedules and safety manuals, but also provide the attendants with information about the customers on the flight, like their meal requests, seating assignment and more. The iPads work on the wireless 3G the British Airways flights are equipped with.